package cn.tedu.order.tcc;

import cn.tedu.order.entity.Order;
import cn.tedu.order.mapper.OrderMapper;
import io.seata.rm.tcc.api.BusinessActionContext;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
import org.springframework.transaction.annotation.Transactional;

import java.math.BigDecimal;

@Component
public class OrderTccActionImpl implements OrderTccAction{
    @Autowired
    private OrderMapper orderMapper;
    @Transactional
    @Override
    public Boolean prepareCreatOrder(BusinessActionContext ctx, Long orderId, Long userId, Long productId, Integer count, BigDecimal money) {
        Order order = new Order(orderId, userId, productId, count, money, 0);
        orderMapper.create(order);
        //第一阶段成功时，保存一个成功标记
        ResultHolder.setResult(OrderTccAction.class, ctx.getXid(), "p");
        return true;
    }
    @Transactional
    @Override
    public boolean commit(BusinessActionContext ctx) {
        //控制幂等性:多次提交时，不重复提交操作
        if (ResultHolder.getResult(OrderTccAction.class, ctx.getXid()) == null){
            return true;
        }
        /**
         * orderId已经被第一阶段就被获取。第一阶段向第二阶段获取时，会转化为JSON。
         *
         */
        Long orderId = Long.valueOf(ctx.getActionContext("orderId").toString());
        orderMapper.updateStatus(orderId, 1);
        //提交成功时，删除标记
        ResultHolder.removeResult(ResultHolder.class,ctx.getXid());
        return true;
    }
    @Transactional
    @Override
    public boolean rollback(BusinessActionContext ctx) {
        if (ResultHolder.getResult(OrderTccAction.class, ctx.getXid()) == null){
            return true;
        }
        Long orderId = Long.valueOf(ctx.getActionContext("orderId").toString());
        orderMapper.deleteById(orderId);
        ResultHolder.removeResult(ResultHolder.class,ctx.getXid());
        return true;
    }
}
